Mercurial > hg > configuration

annotate tests/unit.py @ 139:30abbd61ea5e

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author Jeff Hammel <k0scist@gmail.com>
date Tue, 04 Nov 2014 15:56:54 -0800
parents dff886188b55
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1 #!/usr/bin/env python
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3 """
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4 unit tests for configuration package
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5 """
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6
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7 import configuration
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8 import datetime
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9 import json
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10 import os
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11 import sys
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12 import tempfile
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13 import unittest
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14
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15 from example import ExampleConfiguration # example configuration to test
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16
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17 # globals
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18 here = os.path.dirname(os.path.abspath(__file__))
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20 class ConfigurationUnitTest(unittest.TestCase):
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22 def test_cli(self):
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23 """test command line interface"""
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24
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25 example = ExampleConfiguration()
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26
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27 # parse command line arguments
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28 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox'])
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29
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30 # ensure that the options appropriately get set
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31 self.assertEqual(bool(args), False) # no arguments
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32 self.assertEqual(options.develop, True)
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33 self.assertEqual(options.activeTests, ['ts'])
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34 self.assertEqual(options.browser_path, '/home/jhammel/bin/firefox')
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35
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36 # ensure that the configuration appropriately gets updated
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37 self.assertEqual(example.config['develop'], True)
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38 self.assertEqual(example.config['activeTests'], ['ts'])
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39 self.assertEqual(example.config['browser_path'], '/home/jhammel/bin/firefox')
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41 def test_dict(self):
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42 """test dictionary parsing from the "command line" """
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45 # test adding a preference
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46 example = ExampleConfiguration()
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47 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox',
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48 '--pref', 'hangmonitor.timeout=0'])
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49 self.assertTrue('hangmonitor.timeout' in options.preferences)
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51 # test overriding a preference
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52 example = ExampleConfiguration()
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53 options, args = example.parse_args(['-a', 'ts', '--develop', '-e', '/home/jhammel/bin/firefox',
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54 '--pref', 'browser.bookmarks.max_backups=1'])
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55 self.assertTrue(options.preferences['browser.bookmarks.max_backups'] == '1')
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59 def test_configuration_providers(self):
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60 """test file-based configuration providers"""
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61 # requires json/simplejson to be installed
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63 example = ExampleConfiguration()
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64
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65 # see what providers you got
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66 json_provider = example.configuration_provider('json')
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67 self.assertTrue(isinstance(json_provider, configuration.JSON))
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69 # serialize to a temporary file
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70 filename = tempfile.mktemp(suffix='.json')
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71 self.assertEqual(example.filename2format(filename), 'json')
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72 self.assertFalse(os.path.exists(filename))
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73 config = {'browser_path': '/home/jhammel/bin/firefox',
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74 'activeTests': ['ts']}
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75 example(config)
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76 config['test_timeout'] = 1200 # default
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77 config['preferences'] = {"browser.bookmarks.max_backups": 0,
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78 "browser.cache.disk.smart_size.enabled": False}
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80 # ensure they are equal
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81 self.assertEqual(config, example.config)
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82 example.serialize(filename)
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83 self.assertTrue(os.path.exists(filename))
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84 serialized = json.loads(file(filename).read())
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85 self.assertEqual(serialized, config)
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86
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87 # deserialize
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88 deserialized = example.deserialize(filename)
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89 self.assertEqual(deserialized, config)
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91 # cleanup
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92 if os.path.exists(filename):
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93 os.remove(filename)
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94
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95 def test_missing_values(self):
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96 """ensure that Configuration raises a missing value exception"""
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97
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98 example = ExampleConfiguration()
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99
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100 # monkey-patch the error method from optparse.OptionParser
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101 error_msg = []
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102 def error(msg):
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103 error_msg.append(msg)
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104 example.error = error
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105
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106 # trigger it
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107 example.parse_args(args=[])
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108 self.assertEqual(error_msg, ['Parameter browser_path is required but not present'])
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110 def test_required(self):
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111 """ensure you have to have required values"""
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112
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113 example = ExampleConfiguration()
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114
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115 # ensure you get an exception
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116 missingvalueexception = None
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117 try:
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118 example()
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119 except configuration.MissingValueException, e:
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120 missingvalueexception = e
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121 self.assertTrue(isinstance(e, configuration.MissingValueException))
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122
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124 def test_multiple_configurations(self):
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125 """test having multiple configurations"""
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126
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127 # simple override
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128 args1 = ['-e', '/opt/bin/firefox']
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129
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130 # simple serialized file
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131 json_file = os.path.join(here, 'base.json')
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132 assert os.path.exists(json_file)
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133 json_config = json.loads(file(json_file).read())
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134
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135 # parse the json file
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136 example = ExampleConfiguration()
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137 example.parse_args([json_file])
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138 self.assertEqual(example.config, json_config)
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139
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140 # parse the json file with overrides
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141 example = ExampleConfiguration()
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142 example.parse_args([json_file] + args1)
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143 config = json_config.copy()
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144 config['browser_path'] = '/opt/bin/firefox'
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145 self.assertEqual(example.config, config)
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146
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147 # it shouldn't matter in which order the arguments are
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148 example = ExampleConfiguration()
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149 example.parse_args(args1 + [json_file])
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150 self.assertEqual(example.config, config)
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151
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152 # Now a tricky case:
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153 # the default value for test_timeout is 1200:
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154 example = ExampleConfiguration()
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155 self.assertEqual(example.options['test_timeout']['default'], 1200)
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156 # The value from base.json is 60:
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157 self.assertEqual(json_config['test_timeout'], 60)
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158 self.assertEqual(config['test_timeout'], 60)
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159 # but we can override it back from the "command line"
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160 example.parse_args(args1 + [json_file, '--test_timeout', '1200'])
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161 config['test_timeout'] = 1200
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162 self.assertEqual(example.config, config)
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163
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164 def test_extend(self):
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165
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166 # default preferences
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167 example = ExampleConfiguration()
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168 default_prefs = {"browser.bookmarks.max_backups": 0,
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169 "browser.cache.disk.smart_size.enabled": False}
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170 example.parse_args(['-a', 'ts', '-e', '/opt/bin/firefox'])
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171 self.assertEqual(example.config['preferences'], default_prefs)
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172
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173 # now extend them
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174 example = ExampleConfiguration()
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175 default_prefs['network.dns.ipv4OnlyDomains'] = 'localhost'
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176 tf = tempfile.mktemp()
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177 f = file(tf, 'w')
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178 f.write(json.dumps({'preferences': {'network.dns.ipv4OnlyDomains': 'localhost'}}))
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179 f.close()
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180 example.parse_args(['-a', 'ts', '-e', '/opt/bin/firefox', tf])
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181 self.assertEqual(example.config['preferences'], default_prefs)
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182 os.remove(tf)
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183
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184 def test_typecast(self):
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185 """casting example"""
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186
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187 def todate(string):
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188 return datetime.datetime.strptime(string, "%Y%m%d")
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189
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190 # make an example class
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191 class TypecastExample(configuration.Configuration):
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192 options = {'datestring': {'type': todate}}
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193 example = TypecastExample()
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194
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195 # parse a date string
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196 example({'datestring': "20120704"})
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197
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198 # ensure it works correctly
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199 expected = datetime.datetime(2012, 7, 4, 0, 0)
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200 self.assertEqual(example.config['datestring'], expected)
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201
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202
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203 def test_added(self):
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204 """test that we keep track of things added to the configuration"""
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205
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206 # make an example class
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207 class AddedExample(configuration.Configuration):
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208 options = {'foo': {},
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209 'bar': {}}
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210
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211 # parse it; there should be nothing
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212 instance = AddedExample()
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213 instance()
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214 self.assertEqual(instance.added, set())
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215
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216 # parse it; there should be one thing
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217 instance = AddedExample()
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218 instance({'foo': 'foo'})
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219 self.assertEqual(instance.added, set(['foo']))
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220
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221 # parse it; there should be two things
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222 instance = AddedExample()
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223 instance({'foo': 'foo'}, {'foo': 'FOO', 'bar': 'bar'})
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224 self.assertEqual(instance.added, set(['foo', 'bar']))
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225
131
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226
0
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227 if __name__ == '__main__':
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228 unittest.main()